There is an enormous variety of synthetic polymers with applications in almost every field of human activities. Interpenetrating polymer networks (IPNs) created by combining two different types of polymers provide a novel avenue for improving overall polymer properties. In this research, acrylic-polyurethane based graft-interpenetrating polymer networks, which are flexible and possess high toughness, are synthesized.  A high percentage of polyurethane is utilized in order to obtain flexible materials with high impact resistant. Chemical crosslinking points between the two polymeric systems are used to decrease the degree of phase separation. In this work, the effect of changing the percentage of acrylic polymer and polyurethane on the stiffness, glass transition temperature, impact-resistant, and phase separation of the IPN is studied by using several characterization methods.<br/>Moreover, changing acrylic copolymer precursors from styrene to MMA is checked. Results show that the flexibility of the polyurethane phase and the high glass transition and rigidity of the acrylic copolymer influence strength and stiffness to the IPN in addition to high impact resistant.<br/>The high impact resistance with excellent transparency shows the great potential of graft-IPNs in applications such as dampers, and flexible coatings.<br/>

Flexible acrylic-polyurethane based graft-interpenetrating polymer networks

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.